3,5-Dibromo-4-hydroxybenzenesulfonic acid CAS 4232-99-9
| CAS No. | 4232-99-9 |
| Molecular Formula | 2*C12H11I3N2O5 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
3,5-Dibromo-4-hydroxybenzenesulfonic acid (CAS 4232-99-9) is a high-purity analytical reference standard with the molecular formula C12H11I3N2O5C7H17NO5C2H7NO and a molecular weight of 900.23 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, iodine substitution, 3,5-Dibromo-4-hydroxybenzenesulfonic acid is typically off-white to pale yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 900.23 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO manufactures 3,5-Dibromo-4-hydroxybenzenesulfonic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | 2*C12H11I3N2O5 C7H17NO5 C2H7NO |
| Molecular Weight | 900.23 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 4 |
Related Dibromo Standards
- 3,5-Dibromo-2-chloro-4-methylpyridine (CAS 1000017-92-4)
- 3,5-Dibromo-2-chloro-6-methylpyridine (CAS 1000018-58-5)
- 2,6-Dibromo-4-(trifluoromethyl)pyridine (CAS 1000152-84-0)
- 3,5-Dibromo-2-fluoro-4-methylpyridine (CAS 1000340-01-1)
- 3,4-Dibromo-7-azaindole (CAS 1000340-33-9)
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Recommended Standards
- 3-chloro-2-{5,7-dimethyl-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl}aniline (CAS 1275511-75-5)
- 3-Bromo-4-cyclopropoxy-N,N-dimethylpicolinamide (CAS 1243456-85-0)
- (S)-2-(4-(tert-Butoxycarbonyl)-2-isobutylpiperazin-1-yl)acetic acid (CAS 1240588-48-0)
- 1-(2-Hydroxy-4-((2-methylbut-3-yn-2-yl)oxy)phenyl)ethan-1-one (CAS 30414-96-1)
- 6-Aminopicolinimidamide (CAS 1342903-69-8)
- 5-((3aR,6S,6aS)-2-Amino-3a,4,6,6a-tetrahydro-1H-thieno[3,4-d]imidazol-6-yl)pentanoic acid (CAS 13395-35-2)
- N-[(4-Chlorophenyl)methyl]methanesulfonamide (CAS 42060-30-0)
- Methyl 2,4,5-triamino-3-fluorobenzoate (CAS 918321-27-4)
- 3-Bromo-6-methoxypyridine-2-carbaldehyde (CAS 269058-49-3)
- Tau Peptide (379-408) trifluoroacetate salt (CAS 1246357-53-8)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com